Both graphics card giants have unleashed powerful new additions to their ranks recently, and their battle for supremacy is hotter than ever. We put the new arrivals through their paces

A cheap, lightweight choice for single-core applications, but you get the performance you pay for.

A smartly engineered processor, but for today’s applications it’s lacking in bang per buck.

An old standard, but one that still provides decent performance at a great price.

A wiser purchase than the XTX, this is the best of the top-end cards.

Fair price, but better-equipped cards cost a similar amount.

It’s affordable, quiet, and has plenty of features.

Another card for media centres offering Avivo at a low price.

The FX-55 is AMD's top performer. It's a 2.6GHz beast that will eat through current and future games and applications. Its architecture is based on that of the FX-53, which in turn was based on the first generation FX-51, and AMD has come a long way in bringing 64-bit to the desktop.

The creme de la creme of Athlon 64 products, the 4000+ is a socket 939 CPU with all the bells and whistles. This bad boy clocks in at 2.4GHz, features a 1MB L2 cache and 2GB HyperTransport memory interconnect to work in conjunction with its on-die memory controller.

In the performance stakes the 3200+ came up trumps, finishing middle to top of the pack and clearly cementing itself as a solid performing processor for home, office or pure entertainment.

While 64-bit computing has been around for a while (for the two of you who could afford Intel's Itanium, and now Itanium II processors), the dream of 64-bittery for the humble home system has been a long time coming.

The Athlon XP 3200+ will probably be the last Barton-core desktop processor to come from AMD before the launch later this year of the Athlon 64, its desktop 64-bit processor.

The Athlon XP 2700+ represents a significant leap forward for the Athlon line – it solves a long-term problem by stepping up the default frontside bus (FSB) speed from 266MHz to 333MHz. This means that the Athlon XP can finally run in sync with 333MHz DDR RAM. While most currently available Athlon motherboards support 333MHz DDR, there is virtually no performance boost between this and 266MHz DDR when running an Athlon XP with a 266MHz FSB. The extra speed offered by the RAM quite simply goes to waste, because the CPU can't keep up with it.